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import json
from datetime import datetime
from requests import get
from urllib import urlencode
resultCount=2
urlSearch = 'https://www.wikidata.org/w/api.php?action=query&list=search&format=json&srnamespace=0&srprop=sectionsnippet&{query}'
urlDetail = 'https://www.wikidata.org/w/api.php?action=wbgetentities&format=json&props=labels%7Cinfo%7Csitelinks%7Csitelinks%2Furls%7Cdescriptions%7Cclaims&{query}'
# find the right URL for urlMap
urlMap = 'http://www.openstreetmap.org/?lat={latitude}&lon={longitude}&zoom={zoom}&layers=M'
def request(query, params):
params['url'] = urlSearch.format(query=urlencode({'srsearch': query, 'srlimit': resultCount}))
print params['url']
return params
def response(resp):
results = []
search_res = json.loads(resp.text)
# TODO parallel http queries
before = datetime.now()
for r in search_res.get('query', {}).get('search', {}):
wikidata_id = r.get('title', '')
results = results + getDetail(wikidata_id)
after = datetime.now()
print str(after - before) + " second(s)"
return results
def getDetail(wikidata_id):
language = 'fr'
url = urlDetail.format(query=urlencode({'ids': wikidata_id, 'languages': language + '|en'}))
print url
response = get(url)
result = json.loads(response.content)
result = result.get('entities', {}).get(wikidata_id, {})
title = result.get('labels', {}).get(language, {}).get('value', None)
if title == None:
title = result.get('labels', {}).get('en', {}).get('value', wikidata_id)
results = []
urls = []
attributes = []
description = result.get('descriptions', {}).get(language, {}).get('value', '')
if description == '':
description = result.get('descriptions', {}).get('en', {}).get('value', '')
claims = result.get('claims', {})
official_website = get_string(claims, 'P856', None)
print official_website
if official_website != None:
urls.append({ 'title' : 'Official site', 'url': official_website })
results.append({ 'title': title, 'url' : official_website })
if language != 'en':
add_url(urls, 'Wikipedia (' + language + ')', get_wikilink(result, language + 'wiki'))
wikipedia_en_link = get_wikilink(result, 'enwiki')
add_url(urls, 'Wikipedia (en)', wikipedia_en_link)
if language != 'en':
add_url(urls, 'Wiki voyage (' + language + ')', get_wikilink(result, language + 'wikivoyage'))
add_url(urls, 'Wiki voyage (en)', get_wikilink(result, 'enwikivoyage'))
if language != 'en':
add_url(urls, 'Wikiquote (' + language + ')', get_wikilink(result, language + 'wikiquote'))
add_url(urls, 'Wikiquote (en)', get_wikilink(result, 'enwikiquote'))
add_url(urls, 'Commons wiki', get_wikilink(result, 'commonswiki'))
add_url(urls, 'Location', get_geolink(claims, 'P625', None))
add_url(urls, 'Wikidata', 'https://www.wikidata.org/wiki/' + wikidata_id + '?uselang='+ language)
postal_code = get_string(claims, 'P281', None)
if postal_code != None:
attributes.append({'label' : 'Postal code(s)', 'value' : postal_code})
date_of_birth = get_time(claims, 'P569', None)
if date_of_birth != None:
attributes.append({'label' : 'Date of birth', 'value' : date_of_birth})
date_of_death = get_time(claims, 'P570', None)
if date_of_death != None:
attributes.append({'label' : 'Date of death', 'value' : date_of_death})
results.append({
'infobox' : title,
'id' : wikipedia_en_link,
'content' : description,
'attributes' : attributes,
'urls' : urls
})
return results
def add_url(urls, title, url):
if url != None:
urls.append({'title' : title, 'url' : url})
def get_mainsnak(claims, propertyName):
propValue = claims.get(propertyName, {})
if len(propValue) == 0:
return None
propValue = propValue[0].get('mainsnak', None)
return propValue
def get_string(claims, propertyName, defaultValue=None):
propValue = claims.get(propertyName, {})
if len(propValue) == 0:
return defaultValue
result = []
for e in propValue:
mainsnak = e.get('mainsnak', {})
datatype = mainsnak.get('datatype', '')
datavalue = mainsnak.get('datavalue', {})
if datavalue != None:
result.append(datavalue.get('value', ''))
if len(result) == 0:
return defaultValue
else:
return ', '.join(result)
def get_time(claims, propertyName, defaultValue=None):
propValue = claims.get(propertyName, {})
if len(propValue) == 0:
return defaultValue
result = []
for e in propValue:
mainsnak = e.get('mainsnak', {})
datatype = mainsnak.get('datatype', '')
datavalue = mainsnak.get('datavalue', {})
if datavalue != None:
value = datavalue.get('value', '')
result.append(value.get('time', ''))
if len(result) == 0:
return defaultValue
else:
return ', '.join(result)
def get_geolink(claims, propertyName, defaultValue=''):
mainsnak = get_mainsnak(claims, propertyName)
if mainsnak == None:
return defaultValue
datatype = mainsnak.get('datatype', '')
datavalue = mainsnak.get('datavalue', {})
if datatype != 'globe-coordinate':
return defaultValue
value = datavalue.get('value', {})
precision = value.get('precision', 0.0002)
# there is no zoom information, deduce from precision (error prone)
# samples :
# 13 --> 5
# 1 --> 6
# 0.016666666666667 --> 9
# 0.00027777777777778 --> 19
# wolframalpha : quadratic fit { {13, 5}, {1, 6}, {0.0166666, 9}, {0.0002777777,19}}
# 14.1186-8.8322 x+0.625447 x^2
if precision < 0.0003:
zoom = 19
else:
zoom = int(15 - precision*8.8322 + precision*precision*0.625447)
url = urlMap.replace('{latitude}', str(value.get('latitude',0))).replace('{longitude}', str(value.get('longitude',0))).replace('{zoom}', str(zoom))
return url
def get_wikilink(result, wikiid):
url = result.get('sitelinks', {}).get(wikiid, {}).get('url', None)
if url == None:
return url
elif url.startswith('http://'):
url = url.replace('http://', 'https://')
elif url.startswith('//'):
url = 'https:' + url
return url
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